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Kay’s Homemade Liquid Fertiliser

For a 20litre bucket you will need:

  • ½ kg of seaweed/kelp  meal or 2 kgs fresh chopped up seaweed (good levels of bioavailable calcium, and magnesium)
  • 1 large fresh cow pat
  • 2 dozen egg shells liquid , dried and crushed and  soaked in ½ litre apple cider vinegar (or even better home made vinegar)  until they dissolve or;
  • 6 kina shells or paua shells dried crushed and soaked in vinegar until they dissolve
  • ½ cup molassus


Place in bucket, top up with non chlorinated water and put in a sunny place with a lid on it. Stir daily for two weeks then take off enough top liquid to use in your back pack sprayer or watering can at a rate of 1:10. The liquid will need to be put through a filter so it doesn’t block up your watering can rose or sprayer.

 A 10 litre watering can or back pack sprayer will need 1 litre of liquid fertiliser, so you will have enough for  10 foliar feeds of a garden of 100 sq m  approx… it goes further with a back pack sprayer than it does in a watering can, but I prefer top use a watering can

For a 200 litre barrel you will need:

(If using this barrel then get a large 50mm tap installed 3-cm up from the bottom of the barrel to easily extract the clear liquid)

  • 5kgs of seaweed or kelp powder or fresh chopped seaweed ( chop with a lawn mower)
  • 10 fresh cow pats
  • 20 dozen egg shells or paua and kina shells dried and soaked as above in  5 litres of cider vinegar
  • 5 cups molasses

Follow instructions as above.

 The resulting sludge in the bottom of the container at the end of the season will be an excellent addition to your autumn compost heaps

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